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Sheryl Leigh

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  1. Like
    Sheryl Leigh reacted to njabeid in Strontium ...   
    It's useful as a liner inside vases with narrow necks!
  2. Like
    Sheryl Leigh reacted to Min in Strontium ...   
    Could probably rework the recipes using a strontium frit in place of the strontium carb, would have far less off gassing / pinholes that way.
  3. Like
    Sheryl Leigh reacted to njabeid in Strontium ...   
    My recipe would run straight off your pots, but there are lots of recipes out there for your firing temperatures with strontium in them. Strontium is used to replace barium, which is toxic. It doesn't give colours as brilliant as barium, but can be pretty good! You really need to make some test tiles and try out all sorts of blends and tweaks until you get the surface texture and colour response you like.
  4. Like
    Sheryl Leigh reacted to Mark C. in Strontium ...   
    If you want troule use these type of glazes-the eception is they can look fantastic-just not dependable ,repeatable every time.
    I cut my front teeth on and use every week rutile glazes in my high fire kiln.
    I like the results and can take the woes-some cannot.
  5. Like
    Sheryl Leigh reacted to njabeid in Strontium ...   
    I use strontium and get wonderful blues with cobalt, but deep greens with copper.

    Then one day I expected both these colours on a pot, and found this :

     
     
  6. Like
    Sheryl Leigh got a reaction from Rae Reich in Strontium ...   
    Thanks Babs - that was kind of my last resort as I'm a bit neurotic about wasting anything, but I appreciate the advice!
  7. Like
    Sheryl Leigh got a reaction from Babs in Strontium ...   
    Tried that once... putrid green, never again!
  8. Like
    Sheryl Leigh reacted to Babs in Strontium ...   
    Well not wasted can make a small amount and if you like glaze well mix bigger batch of that and pour test into bucket. Only a small batch wasted...or some folk pour all their bits and bobs of glazes into one bucket and see how thst fires...
  9. Like
    Sheryl Leigh got a reaction from Rae Reich in How should I apply Red Iron Oxide for this effect?   
    Ah, that's what illmenite is for!
     
  10. Like
    Sheryl Leigh reacted to Babs in Strontium ...   
    Well mix a small amoubt of glaze  using the strontium carb above mentioned .
    If you gavw anotger sourxe of strontium carb mix up same glaze using that .
    Place both on pieces of biscuit xlay.
    Fire and see if results the same ..
    Strontium usually gives vivid blues with copper I think.
    Check glazyorg for recipe containing strontium. Used to replace barium carb sometimes
  11. Like
    Sheryl Leigh reacted to AlexDaCat in VIVID BLUE UNDERGLAZE   
    I have included more info on this bird known as the Blue Wren here in Australua  
  12. Like
    Sheryl Leigh reacted to Benzine in Engobe And Glaze   
    I'm going to suggest, that this topic be moved to the "Alchemy" and "Wizardry" Boards, because I have no idea what kind of incantations ya'll are talking about...
  13. Like
    Sheryl Leigh reacted to liambesaw in Clay fatigue?   
    Yeah that phrase could mean many things.  I also have heard it used on recycled clay that has lost it's fines.  
  14. Like
    Sheryl Leigh reacted to Min in Clay fatigue?   
    I think of clay fatigue as fatigue from overworking clay on the wheel. Clay gets flabby with excess water and collapses. I don't think of the cone6pots post example as clay fatigue.
    Potter Fatigue, overworking with clay, very common this time of year. 
  15. Like
    Sheryl Leigh reacted to Callie Beller Diesel in Bubbling ^06 Glaze   
    If, after you refire your disks and you discover them to be more bubble-free, you can add a soak hold at the end of your kiln cycle by lifting the weight, turning the kiln back on, and very gently lowering the weight so it doesn't trip. Start your soak at about 10-15 minutes in length, and go from there. You will have to turn off the kiln manually.
  16. Like
    Sheryl Leigh reacted to Babs in Making underglazes from powders   
    why not go for coloured slips, if your clay is white just use that plus stain. Mix with water but when it's thickish use a defloc like sodium silicate, couple of drops. This will make it fluid without extra water.
    use on moist leather hard work.
    if clay is red o coloured buy a bag of porcelain.
    And yes, ball clay, well ones I'm familiar with will dull the colour.
    some stains are WYSIWYG and others are not.
     
    I used to label jars thus.
  17. Like
    Sheryl Leigh reacted to yappystudent in cadmium red   
    Had to read this twice trying to find the hysteria in it. Seems like well-worded and level headed advice to me.
  18. Like
    Sheryl Leigh reacted to Briana in How long is too long for Greenware   
    You know I’ve heard this from a vew tutorial videos!! That might not be a bad idea. It would certainly eliminate the issue with fragility and keeping one will allow me to track my progress!!! I like it.
  19. Like
    Sheryl Leigh reacted to jafa5 in Suitable glazes for highly textured pots   
    Fired pot linked below
    Glossy white inside and over lip with an iron saturate on the outer
    Fired to cone 6 gas in oxidation
    Not the best photo but all I have until I pick it up on Tuesday. Fired at a mates place and called to wake him up at 6 am  to open the kiln and send me pics haha
     

  20. Like
    Sheryl Leigh reacted to Magnolia Mud Research in Suitable glazes for highly textured pots   
    the use of soda ash, borax, or trisodium phosphate solutions, or mixtures, or "A" over "B" layering depends on your application skills and technique.  I use a hand operated spray bottle with an adjustable nozzle that can be either a mist or a straight stream.  The spray pattern does matter.  
      
      
    all pots are with a cone 10 stoneware fired in school studio reduction gas kiln.
      
    image #3298 cup with shino inside and rim.  outside sprayed with soda ash without trying to get a 'uniform' treatment.  The dry areas are lighter hues and are less glossy.  
      
    image #3333:  cup with raw kaolin crackle on a buff cone 10 clay body
    the reddish spots areas were sprayed with soda ash solution.
      
      
    Image #3449cropcrop-x4  shows a pond clay crackle; left shiny side was sprayed with soda ash, right side no spray
      
      
    image #3449cropx-4-3-2 shows heavy coat of shino on rim, a swash across right with shino from a sponge, areas without (lighter hues) and with (darker red hues) soda ash spray. 
      
    image #3451 closeup of dry area a bottom of 3449 showing contrasts of dry and sprayed areas.  Note the shino mark in top right.
      
    LT
     
     





  21. Like
    Sheryl Leigh reacted to synj00 in Suitable glazes for highly textured pots   
    Baking Soda Eh? That idea is going into my next test batch. I hadn't thought to look into soda firing techniques for usable materials. Got any pics of ware glazed like that? 
     
    Thanks,
    Sebastian 
  22. Like
    Sheryl Leigh reacted to Callie Beller Diesel in Celadon - Application?   
    I think we get fruatrated with the inaccurate naming of things because it makes some definitions too broad over time, and especially for our particular Internet teaching purposes, that can make our jobs harder.   @yappystudent To extend your metaphor, stating the shoe fits is like my six year old trying to tell me her sandals still fit from last year, even though her toes are hanging off the edge. It misses certain key facts that are going to become painfully important to the user. 
    If someone says "I'm having trouble with this celadon," those of us answering questions have to first establish the frame of the asker's reference so that we can solve the right problem. Are they in a community studio or self taught, and are therefore asking about the brushability of a bottled glaze, or are they an undergrad student working at cone ten reduction, mistakenly trying to use porcelain and red iron oxide to achieve that exact Koryo Dynasty shade? Even though the store bought and the home-mix might be (sort of) the same colour and translucent, they're two different animals with wildly different sets of problems. 
    Edited to add: the end results of both categories are lovely and are classics for good reason. It's just the wrong nomenclature that becomes vexing.
  23. Like
    Sheryl Leigh reacted to Sputty in Bisque temp for raku   
    .
  24. Like
    Sheryl Leigh got a reaction from kristinanoel in Ceramic Bakeware   
    Hi Kristina-
    I actually do not think that is fear mongering, but there is much more experienced ceramicists here who can give you a more educated answer.
    I *will* say, however, that this is a very old thread and in order to get the most answers for your question you might want to start a new post.
    Welcome!
  25. Like
    Sheryl Leigh got a reaction from Chilly in Where to source bespoke ceramic form   
    That, and "bespoke" - typically Yanks say custom made or made to order.
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